Hi! I've filed a support ticket, but it's Saturday and I kinda want this working while I have time to spend on it.

The kit is great and went together in a few hours, as expected. There wasn't nearly as much assembly as I anticipated. The wiring harnesses having been made up already, it's pretty straightforward to assemble. I think the hardest part was routing the cables nicely.

Having gotten all that together, I moved on to the Quick Start App (which was hard to find; the URLs in the assembly guide don't work)... and I can't connect.

I've tested, not in this order:- 2 different Mac laptops (same failure modes on both)- USB cable on an Arduino (the cable is fine)- power supply seems to work (generates 24v on all 3 lines)- RAMBo has no active LEDs when power is applied- no fans kick in, no locking of motors, no motion of any kind, no sign of life- all 3 fuses are fine; I pulled the 15A and tested + inspected, the other two I was able to test in place on the board- in an arduino serial monitor I can't get anything from the RAMBo, I've tried several common speeds (9600 & 115200, plus a few on the high end)- reseating power, reseating SD, etc

Is this a DOA RAMBo? I don't want to do any invasive testing before I talk to support, but I think it'll be 2 days before support comes online, and I worry that it'll be another week if they decide it's a dead board.

Any other ideas for what to test, or how to confirm whether it's working (e.g. I have 2 bad computer setups) or failed?-